Sydney air quality today
Air quality in Sydney is currently good, with a European index of 23. The concentration of PM2.5 particles is 6 µg/m³ and PM10 is 10 µg/m³. The air is good and safe to spend time outdoors. Over the next 24 hours the air will be cleanest around 4:00 AM (index 19) and most polluted around 3:00 PM (index 32).
Current air quality in Sydney
Good
23EAQI
The air is good and safe to spend time outdoors.
- PM2.5
- 6 µg/m³
- PM10
- 10 µg/m³
- Ozone
- 56 µg/m³
Model estimate (Open-Meteo / CAMS) for the city location. It may differ from readings at local stations.
The next 24 hours at a glance
- Index now
- 23
- Good
- Average index
- 24
- Good
- Cleanest air
- 4:00 AM
- index 19
- Most polluted hour
- 3:00 PM
- index 32
- PM2.5
- 6 µg/m³
- PM10
- 10 µg/m³
Air quality in Sydney by the hour
- 23Now
- 235 PM
- 236 PM
- 237 PM
- 238 PM
- 249 PM
- 2310 PM
- 2411 PM
- 2512 AM
- 241 AM
- 232 AM
- 213 AM
- 194 AM
- 195 AM
- 216 AM
- 217 AM
- 228 AM
- 249 AM
- 2410 AM
- 2511 AM
- 2812 PM
- 291 PM
- 312 PM
- 323 PM
European Air Quality Index (EAQI) by the hour, a model estimate. A shorter bar means cleaner air.
Pollen in Sydney
Pollen data is not available for this location. The pollen model only covers Europe.
Frequently asked questions
How is the air quality in Sydney today?
It is currently good (European index 23). PM2.5 is 6 µg/m³, PM10 is 10 µg/m³ and ozone is 56 µg/m³. The average for the next 24 hours is around 24.
What does the European Air Quality Index (EAQI) mean?
The EAQI is a scale used by the European Environment Agency. Up to 20 is excellent air, up to 40 good, up to 60 moderate, up to 80 poor, up to 100 very poor, and above 100 extremely poor. The index is calculated from the concentration of fine particles (PM2.5 and PM10), ozone, nitrogen dioxide and sulphur dioxide.
What are PM2.5 and PM10 particles?
They are tiny particles in the air with a diameter of up to 2.5 and 10 micrometres. They come from traffic, heating and industry, and there are the most of them in winter, on calm days without wind or rain. PM2.5 is more dangerous because it penetrates deep into the lungs.
Are these measurements or estimates?
This is an atmospheric model estimate (Open-Meteo / CAMS) for the city location, not a reading from a local station. Values may therefore differ from station data in some parts of the city.
When is the air cleanest?
The air is usually cleaner during stronger winds, after rain and in the afternoon, when the cold layer near the ground breaks up. It is worst early in the morning and in the evening in the cold part of the year, when heating and traffic increase.